mod7

What is the function of the iris in the human eye?

• Transduces light into hyperpolarization

• Sends visual information to the brain

• Controls the amount of light entering the eye

• Adjusts focal distance

Which type of photoreceptor is responsible for dim light vision?

• Ganglion cells

• Bipolar cells

• Cones

• Rods

Where is the highest visual acuity found in the retina?

• Optic Disc

• Blind Spot

• Periphery

• Fovea

What is the role of the optic nerve?

• Transduces light into electrical signals

• Sends visual information to the lateral geniculate nucleus

• Adjusts lens shape

• Controls eye movement

What is the primary function of the dorsal visual stream?

• Enhances visual acuity

• Processes color perception

• Detects object location and motion

• Identifies object categories

Which condition is characterized by difficulty recognizing faces?

• Akinetopsia

• Prosopagnosia

• Optic ataxia

• Simultanagnosia

What is the main function of V5 in the visual brain pathway?

• Specializes in color changes

• Adds illusory contours

• Processes global motion

• Detects object motion

Which theory explains color perception through cone signals combining in bipolar and ganglion cells?

• Retinal Disparity

• Trichromatic Vision

• Lateral Inhibition

• Opponent Process Theory

What is the result of damage to the primary visual cortex (V1)?

• Color blindness

• Scotomas (blind spots)

• Enhanced depth perception

• Improved motion detection

What is the purpose of lateral inhibition in the visual system?

• Increases light sensitivity

• Sharpens border detection

• Improves motion detection

• Enhances color perception